If the mass of the earth and all objects on it were suddenly doubled, but the size remained the same, the acceleration due to gravity at the surface would become
a) 1/2 of what it now is.
b) 2 times what it now is.
c) 1/4 of what it now is.
d) the same as it now is.
e) 4 times what it now is.
Answers: 2
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If the mass of the earth and all objects on it were suddenly doubled, but the size remained the same...
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